Keyboard shortcuts

Can we have a feature to play/pause music with just keyboard like spacebar?
left/right arrow keys for 5 or 10 seconds forward/rewind

+/- keys for Animation Speed increments by 0.1

A little popup at the top for a second or two to indicate you used shortcuts like "Animation Speed 1.1"and ability to disable that popup as well in the settings if you don't like any notifications at all.